AS350 Flashcards
Max gross wt
4961 lbs
VNE
Power on 155 kts -3 kts per 1000 ft
Power off 125 kts -3 kts per 1000 ft
VNE doors off
110 kts or 100 kts depending on config
Max operating altitude
20,000 ft
Operating temp limitations
Min -40 deg C
Max ISA +35 deg C limited to +50 deg C
(Min -25 deg C spherical T bearings)
Maneuvering limitations
Servo transparency
Main rotor speed
On the ground low pitch 380 +- 5
Flight 390 +4/-5
Power off rotor speed
320 to 430
Horn continuous below 360
Horn intermittent above 410
Rotor break limitation
170 rrpm
Min 5 min between breakings
Torque limitation
Airspeed below 40 kts:
Max cont 100%, transient 107% for 10 sec
A/S above 40 kts: max cont 94%
Gas generator (Ng) speed limitation
Transient limit 107.5% “+6” less than 5 sec
5 min T/O: “0” (101.7)
Max cont. 98% “-3.5”
t4 limitation
Max during start: 795
Transient during start: 865 for 5 sec
Max during T/O: 845
Max cont: 795
Free turbine speed limitation
Max cont. equivalent: 417
Trans. Limits 5 sec:
min 330
max 463
Oil press limitation
Ng between 70%~85%: 1.3 bar
Ng above 85%: 1.8 bar
Max outside start: 5 bar
Oil temp limitation
Max: 115 deg C
Min for flight: 0 deg C
Electrical system limits
Normal: 26v~29v
Max: 31.5v @ 150A
Slope limitations
10 deg nose up
6 deg nose down
8 deg lateral
Autorotation
65 kts flare @ 65 ft agl
Low side gov failure
Establish autorotation 65 kts, advance fuel control to 70% Ng, raise collective to 350 rrpm, advance fuel control to 380 rrpm & continue flight
High side gov failure
Do not reduce collective, reduce fuel control until rrpm in mid green arc, continue flight.
For both gov failure, establish shallow approach @ 65 kts with rrpm at the top of green arc, cushion landing with collective allowing rrpm to droop. After touchdown reduce fuel control before collective pitch
Surging
Reduce collective, if surging persists reduce fuel control below governed range, if surging persists LASAP & shut down engine
Tail rotor drive failure in flight
Reduce power & maintain A/S for weathercock effect. Perform autorotation to suitable landing site
Tail rotor control failure in flight
Reduce power & maintain 70 kts. Depress HYD test swich 5 sec. Shallow approach to suitable site w/ nose to the right of centerline & perform run on landing.
Eng oil pressure gauge low or 0
Press to test lights.
- If ENG P light does not illuminate:
- check torque gauge.
- If torque gauge low, shut down engine.
- If torque gauge normal LASAP.
If light illuminates:
- check torque gauge.
- If low, LASAP.
- If normal LASAPractical, monitor ENG P light.
Engine oil temp above 115 deg
At low speed or hover, land if possible.
If landing impossible, increase A/S to 80 kts. If no decrease in temp LASAP.
In flight reduce power if proceed as above
Ng indicator failure
Contonue flight, maintain T4 below 750 deg
Torque meter failure
Continue flight, maintain Ng below 98%
MGB P light illuminates in flight
LASAP
MGB T light illuminates in flight
Press to test lights, if MGB P light does not illuminate, LASAP. If light illuminates, land and check MGB oil level. If normal, proceed to nearest base
ENG P light illuminates in flight
Check eng press gauge. If low, check torque gauge. If low, shut down engine. If normal, Land immediately. If eng pressure gauge and torque meter normal, land as soon as possible
GEN light illuminates in flight
Reset GEN switch, if light doesn’t go out, switch off unnecessary electrical, LASApractical, 22v minimum (NiCad battery only)
FUEL light illuminates in flight
Avoid large attitude changes. 18 min fuel remains
ENG CHIP light illuminates in flight
LASAP
F FILT light illuminates in flight
Reduce power, if light goes out continue flight at reduced power. If light does not go out, LASAP
CHIP TGB light illuminates in flight
Continue flight, avoid prolonged hovering
MGB CHIP light illuminates in flight
Land ASAP
FUEL P light illuminates in flight
Check fuel pressure. If normal, one pump has failed-continue flight. If pressure zero both pumps have failed-continue flight below 5000 ft
Bleed valve flag does not appear below specified NG value
Bleed valve stuck closed. Avoid sudden power variations-engine surging may result.
